*{
    margin: 0px;
    padding: 0px;
}
 header{
    background-color: #4CAF50;
    width: 100%;
    height: auto;
    color: white;
    text-align: center;
    position: sticky;
    top: 0px;
    z-index: 99;
}
span{
    font-size: 30px;
    color: white;
    text-align: center;
    word-spacing: 30px;
}
.white{
    font-size: 30px;
    color: white;
    text-align: center;
    word-spacing: 30px; 
}
nav{
    background-color:  #333;
    width: 100%;
    height: auto;
    color: white;
    font-size: 50px;
    word-spacing: 100px;
    text-align: center;
}
main{
    background-color: #f5f5f5;
    width: 95%;
    height: auto;
    padding: 20px;
}
.c1{
    width: 50px;
}
h2{
    color: #4CAF50;
} 
hr{
    border: 2px solid #4CAF50;
}
table tr{
    text-align: center;
    height: 50px;
}

footer{
    background-color: #4CAF50;
    color: white;
    width: 100%;
    height: auto;
    font-size: 30px;
    text-align: center;
}